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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2022 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
from typing import Collection, Dict
from unittest import mock
from twisted.internet.defer import CancelledError, ensureDeferred
from synapse.storage.util.partial_state_events_tracker import (
PartialCurrentStateTracker,
PartialStateEventsTracker,
)
from tests.unittest import TestCase
class PartialStateEventsTrackerTestCase(TestCase):
def setUp(self) -> None:
# the results to be returned by the mocked get_partial_state_events
self._events_dict: Dict[str, bool] = {}
async def get_partial_state_events(events: Collection[str]) -> Dict[str, bool]:
return {e: self._events_dict[e] for e in events}
self.mock_store = mock.Mock(spec_set=["get_partial_state_events"])
self.mock_store.get_partial_state_events.side_effect = get_partial_state_events
self.tracker = PartialStateEventsTracker(self.mock_store)
def test_does_not_block_for_full_state_events(self) -> None:
self._events_dict = {"event1": False, "event2": False}
self.successResultOf(
ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
)
self.mock_store.get_partial_state_events.assert_called_once_with(
["event1", "event2"]
)
def test_blocks_for_partial_state_events(self) -> None:
self._events_dict = {"event1": True, "event2": False}
d = ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
# there should be no result yet
self.assertNoResult(d)
# notifying that the event has been de-partial-stated should unblock
self.tracker.notify_un_partial_stated("event1")
self.successResultOf(d)
def test_un_partial_state_race(self) -> None:
# if the event is un-partial-stated between the initial check and the
# registration of the listener, it should not block.
self._events_dict = {"event1": True, "event2": False}
async def get_partial_state_events(events: Collection[str]) -> Dict[str, bool]:
res = {e: self._events_dict[e] for e in events}
# change the result for next time
self._events_dict = {"event1": False, "event2": False}
return res
self.mock_store.get_partial_state_events.side_effect = get_partial_state_events
self.successResultOf(
ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
)
def test_un_partial_state_during_get_partial_state_events(self) -> None:
# we should correctly handle a call to notify_un_partial_stated during the
# second call to get_partial_state_events.
self._events_dict = {"event1": True, "event2": False}
async def get_partial_state_events1(events: Collection[str]) -> Dict[str, bool]:
self.mock_store.get_partial_state_events.side_effect = (
get_partial_state_events2
)
return {e: self._events_dict[e] for e in events}
async def get_partial_state_events2(events: Collection[str]) -> Dict[str, bool]:
self.tracker.notify_un_partial_stated("event1")
self._events_dict["event1"] = False
return {e: self._events_dict[e] for e in events}
self.mock_store.get_partial_state_events.side_effect = get_partial_state_events1
self.successResultOf(
ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
)
def test_cancellation(self) -> None:
self._events_dict = {"event1": True, "event2": False}
d1 = ensureDeferred(self.tracker.await_full_state(["event1", "event2"]))
self.assertNoResult(d1)
d2 = ensureDeferred(self.tracker.await_full_state(["event1"]))
self.assertNoResult(d2)
d1.cancel()
self.assertFailure(d1, CancelledError)
# d2 should still be waiting!
self.assertNoResult(d2)
self.tracker.notify_un_partial_stated("event1")
self.successResultOf(d2)
class PartialCurrentStateTrackerTestCase(TestCase):
def setUp(self) -> None:
self.mock_store = mock.Mock(spec_set=["is_partial_state_room"])
self.mock_store.is_partial_state_room = mock.AsyncMock()
self.tracker = PartialCurrentStateTracker(self.mock_store)
def test_does_not_block_for_full_state_rooms(self) -> None:
self.mock_store.is_partial_state_room.return_value = False
self.successResultOf(ensureDeferred(self.tracker.await_full_state("room_id")))
def test_blocks_for_partial_room_state(self) -> None:
self.mock_store.is_partial_state_room.return_value = True
d = ensureDeferred(self.tracker.await_full_state("room_id"))
# there should be no result yet
self.assertNoResult(d)
# notifying that the room has been de-partial-stated should unblock
self.tracker.notify_un_partial_stated("room_id")
self.successResultOf(d)
def test_un_partial_state_race(self) -> None:
# We should correctly handle race between awaiting the state and us
# un-partialling the state
async def is_partial_state_room(room_id: str) -> bool:
self.tracker.notify_un_partial_stated("room_id")
return True
self.mock_store.is_partial_state_room.side_effect = is_partial_state_room
self.successResultOf(ensureDeferred(self.tracker.await_full_state("room_id")))
def test_cancellation(self) -> None:
self.mock_store.is_partial_state_room.return_value = True
d1 = ensureDeferred(self.tracker.await_full_state("room_id"))
self.assertNoResult(d1)
d2 = ensureDeferred(self.tracker.await_full_state("room_id"))
self.assertNoResult(d2)
d1.cancel()
self.assertFailure(d1, CancelledError)
# d2 should still be waiting!
self.assertNoResult(d2)
self.tracker.notify_un_partial_stated("room_id")
self.successResultOf(d2)
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